On Mon, May 03, 2021 at 02:49:34PM +0200, Andrew Lunn wrote:
On Mon, May 03, 2021 at 01:06:54AM +0200, Ansuel Smith wrote:
quoted
Use readl/writel function instead of regmap function to make sure no
value is cached and align to other similar mdio driver.
regmap is O.K. to use, so long as you tell it not to cache. Look at
how to use volatile in regmap.
You might be able to follow what lan9303_mdio.c is doing.
Andrew
Was thinking more about the overhead of using regmap instead of plain
writel. Or is it minimal?